import java.util.Scanner;


public class SwitchTest {

  public static void main(String[] args) {

    Scanner in = new Scanner(System.in);
    System.out.print("Enter a number(1/2/3/4): ");
    int input = in.nextInt();

    switch (input) {
      case 1:
        System.out.printf("Hello World Number %d.\n", input);
        break;
      case 2:
        System.out.printf("Hello World Number %d.\n", input);
        break;
      case 3:
        System.out.printf("Hello World Number %d.\n", input);
        break;
      case 4:
        System.out.printf("Hello World Number %d.\n", input);
        break;
      default:
        System.out.printf("Hello World Number %d.\n", input);
    }
  }

}
